Microsoft windows administration jobs in mclean, va

Arlington, Virginia

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Today

Job ID: 2617428 Location: Arlington, VA, US Date Posted: 2026-09-29 Category: Information Technology Subcategory: IT Sys Integration Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: TS.SCI Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_ON_SITE Description Team SAIC is currently seeking a motivated and experienced Organizational Messaging System (OMS) System Administrator to join our team at the Pentagon in Arlingt

Full-time

USD 40,001.00 - 80,000.00 per year

Sr. Cyber Security Engineer

Arlington, Virginia

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Today

Req ID: 42114 Summary Sr. Cyber Security Engineer Arlington, VA Are you ready to enhance your skills and build your career in a rapidly evolving business climate? Are you looking for a career where professional development is embedded in your employers core culture? If so, Chenega Military, Intelligence & Operations Support (MIOS) could be the place for you! Join our team of professionals who support large-scale government operations by leveraging cutting-edge technology and take your career

Full-time

USD 175,200.00 - 220,000.00 per year

Software Engineer- Senior

Herndon, Virginia

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Today

Job Description This position requires an active TS/SCI with Polygraph. We are seeking a versatile Senior Software Developer with expertise in secure software engineering. The ideal candidate will combine technical proficiency in development of tools and cyber security. The candidate will work in an agile environment, collaborating with cross-functional teams to address a broad range of IT issues while safeguarding customer assets. This role requires collaboration across cross-functional teams

Full-time

USD 154,000.00 per year

Systems Administrator

Quantico, Virginia

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20d ago

Role Summary This part-time System Administrator role involves supporting Windows desktop environments and network systems within a personnel testing lab. The position requires collaboration with cybersecurity teams to implement updates, patches, and maintain system security. The successful candidate will provide hands-on support during testing sessions and contribute to system documentation and authority to operate (ATO) processes. Responsibilities Provide Windows desktop support, troubleshoot

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Third Party, Contract

Depends on Experience

SIEM Engineer

Hybrid in Washington, District of Columbia

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Yesterday

QualificationsRequirementsBachelor's degree in Cybersecurity, Computer Science, Information Systems, Engineering, or a related technical discipline; OR equivalent relevant IT/cybersecurity experience.9+ years of relevant IT or cybersecurity experience, including at least 3 years of hands-on SIEM administration, engineering, or enterprise logging experience.Ability to obtain and maintain a Public Trust requiring U.S. Citizenship.Demonstrated experience administering, engineering, or troubleshooti

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Contract, Third Party

Depends on Experience

Systems Administrator

Quantico, Virginia

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13d ago

Role SummaryThis part-time System Administrator position supports Windows desktop environments, network infrastructure, and cybersecurity activities within a testing laboratory environment. The role provides hands-on technical support for system maintenance, updates, testing, data collection, and security documentation. This position is based on-site in Quantico, Virginia, and typically requires approximately 24 hours of work per week. Responsibilities Provide Windows desktop support and trouble

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Contract, Third Party

Depends on Experience

Senior Windows Systems Engineer

Hybrid in Washington, District of Columbia

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22d ago

<>OverviewWe are seeking a Senior Windows Systems Engineer to support the design, implementation, administration, and modernization of enterprise Windows infrastructure and cloud-based services. This is a hands-on engineering role responsible for maintaining highly available, secure, and scalable environments while serving as a technical lead and escalation point for complex issues. The position also provides mentorship to system administrators and contributes to infrastructure standards, automa

Easy Apply

Contract

70 - 75

Network and Computer Systems Administrator SME

Washington, District of Columbia

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Today

Our Deloitte Cyber team understands the unique challenges and opportunities businesses face in cybersecurity. Join our team to deliver powerful solutions to help our clients navigate the ever-changing threat landscape. Through powerful solutions and managed services that simplify complexity, we enable our clients to operate with resilience, grow with confidence, and proactively manage to secure success. Deloitte is looking for a Network and Computer Systems Administrator SME to help strengthen a

Full-time

USD 137,500.00 - 183,300.00 per year

Windows System Administrator

Suitland-Silver Hill, Maryland

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Today

Windows System Administrator Location: Suitland, MD Clearance: TS/SCI We are seeking an experienced Windows System Administrator in Suitland, MD to support enterprise Windows environments, system upgrades, vulnerability management, and secure configuration in a mission-critical setting. Key Responsibilities: Build and upgrade Windows servers and workstations.Run and analyze ACAS vulnerability scans.Manage GPOs, Active Directory, and domain services.Support SCCM deployments, imaging, and compl

Full-time

USD 92,300.00 - 166,850.00 per year

Tier 2 / Systems Administrator - ONSITE - Active Top Secret required

Washington, District of Columbia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: IT System Administration, System Administration, Windows System Administration Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: Tier 2 System Administrator Advance how our customers operate while yo

Full-time

USD 93,662.00 per year

System Analyst

Washington, District of Columbia

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Today

Job Type Full-time Description Position Overview Diaconia seeks a versatile Systems Analyst to support a federal client's application development and IT operations program. This role is suited to a hands-on technical generalist with experience across multiple areas who enjoys supporting application development, system and database administration, Help Desk services, DevOps, and security operations. Working with the program's technical leads, the analyst will help maintain reliable application

Full-time

USD 90,000.00 - 100,000.00 per year

Windows Systems Administrator - TS/SCI w/Polygraph

McLean, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Microsoft SQL Database, VMware Clusters, Windows Engineering, Windows System Administration Certifications: None Experience: 15 + years of related experience ship Required: Yes Job Description: At GDIT, people are our differentiator. As a Windo

Full-time

USD 199,750.00 - 270,250.00 per year

Information Systems Security Engineer

Alexandria, Virginia

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Today

Overview Systems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are known for continuous innovation for our government customers, in both the US and abroad. Our exceptionally talented team is highly collaborative in spirit and practice, producing Results that Matter. Come work with the best! We offer opportunity, unique challenges, and clear-sighted commitment to

Full-time

USD 110,000.00 per year

Senior/Expert Systems Admin (DevOps)

Herndon, Virginia

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Today

Overview Byte Systems, a subsidiary of VTG, is seeking a Senior/Expert Systems Admin (DevOps). The Systems Administrator will assist with database sizing and management as well as perform routine maintenance and administration tasks on the infrastructure hosting our applications, including our develop, testing, training, and production environments. Our team consists of Software Developers, Systems Development Engineers (DevOps), and Data Engineers - with this combination of skills, we develop

Full-time

USD 175,000.00 - 220,000.00 per year

Cloud Administrator

Washington, District of Columbia

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Today

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company within global Accenture. Recognized as a Glassdoor Top 100 Best Place to

Full-time

USD 91,300.00 - 184,900.00 per year

Senior Network Administrator

Fort Meade, Maryland

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Today

Location: Ft. Meade, Maryland Type: Contract Job #4059 Title: Senior Network Administrator Location: Ft. Meade, MD Compensation Range: $130 - $150k Clearance: * Active DoD TS (TS/SCI eligibility required) Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience

Full-time

USD 130,000.00 - 150,000.00 per year

Systems Administrator 3

Bethesda, Maryland

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Today

Requisition ID: 5420Standard Title: Systems AdministratorRequired Security Clearance: Top Secret/SCILocation: Bethesda, MDWork Type: On-SiteShift: FirstReferral Eligibility: EligibleU.S. Citizenship Required? Yes Position Summary Support the OSINT Integration Center under the DOMEX Technology Platform contract as a Systems Administrator 3 focused on Linux and Windows systems administration, performance optimization, and user support. Essential Duties and Responsibilities Perform Linux and Windo

Full-time

Systems Administrator 4

Bethesda, Maryland

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Today

Requisition ID: 5419Standard Title: Senior Systems AdministratorRequired Security Clearance: Top Secret/SCILocation: Bethesda, MDWork Type: On-SiteShift: FirstReferral Eligibility: EligibleU.S. Citizenship Required? Yes Position Summary Support the OSINT Integration Center under the DOMEX Technology Platform contract as a Systems Administrator 4 focused on Linux and Windows systems administration, performance optimization, and user support. Essential Duties and Responsibilities Perform Linux an

Full-time

Systems Support Specialist - Junior

Springfield, Virginia

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Today

Job Description Customer Description Our customer is an Intelligence Agency (IA) delivering world-class geospatial intelligence providing a decisive advantage to policymakers, war-fighters, intelligence professionals and first responders. The customer enables all these critical actions and shapes decisions impacting our world through the indispensable discipline of geospatial intelligence (GEOINT). Our customer is a unique combination of intelligence and combat support agency. It is the world

Full-time

Systems Administrator 2

Bethesda, Maryland

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Today

Requisition ID: 5209Standard Title: Junior Systems AdministratorRequired Security Clearance: Top Secret/SCILocation: Bethesda, MDWork Type: On-SiteShift: FirstReferral Eligibility: EligibleU.S. Citizenship Required? Yes Position Summary Support the OSINT Integration Center under the DOMEX Technology Platform contract as a Systems Administrator 2 focused on Linux and Windows systems administration, performance optimization, and user support. Essential Duties and Responsibilities Perform Linux an

Full-time

Microsoft windows administration jobs in McLean, VA, USA